Electronics Forum | Fri Feb 28 00:42:40 EST 2020 | luciano_zhang
What is the use of gold plated boards?
Electronics Forum | Thu Jun 30 20:17:19 EDT 2005 | davef
Matt: What thickness of hard gold was applied to your customer's boards?
Electronics Forum | Thu Jun 30 21:55:33 EDT 2005 | Mason Hughes
Hi, In response to reading height or gold thickness, I can do that masonhughes@sbcglobal.net
Electronics Forum | Wed Jun 29 16:25:51 EDT 2005 | mattkehoe
When discussing this with the customer he said that his vendor recommended a hard gold plating finish on the board due to the BGA. I said "hard gold"??? And he said yes, hard gold. Turns out the boards were plated with hard gold, not ENIG. Thank
Electronics Forum | Tue Jun 28 19:58:59 EDT 2005 | davef
Michael: What's this "tint"? How do you do it? Tell us more, please.
Electronics Forum | Tue Jul 11 14:09:54 EDT 2006 | Chunks
Not reflowing completely. Slower = hotter. Try a slower conveyor speed.
Electronics Forum | Fri Feb 28 01:08:33 EST 2020 | sarason
Back in the 50's, 60's and 70's gold plated boards were all the rage for high reliability. test equipment, milspec etc. Nowadays only edge connectors are gold plated. Immersion plated gold is also used but it doesn't last the distance like gold plate
Electronics Forum | Tue Jun 28 19:56:59 EDT 2005 | davef
Matt: Yes, if the gold was really thick, it could appear like your pictures. In measuring gold plating thickness, we'd want to use xray fluorescence [XRF]. For alternatives, look here: http://www.pfonline.com/articles/pfd0027.html
Electronics Forum | Fri Mar 20 05:55:24 EDT 2020 | yuaanliie
The gold plating on PCB has a 40% higher resistivity, and it is much more expensive. So gold is not used instead of copper for conductors. Last month I purchased some PCB from Cplfpc and Greatpcb.
Electronics Forum | Fri Feb 28 10:07:29 EST 2020 | stephendo
Flatness is only half of the advantage. Gold doesn't corrode. There are other flat surfaces but do not last as long as gold.
